diff --git a/database/migrations/2025_08_21_150059_alert_teachers_table.php b/database/migrations/2025_08_21_150059_alert_teachers_table.php
index 091349f..ba73303 100644
--- a/database/migrations/2025_08_21_150059_alert_teachers_table.php
+++ b/database/migrations/2025_08_21_150059_alert_teachers_table.php
@@ -14,9 +14,9 @@ return new class extends Migration
     public function up()
     {
         Schema::table('teachers', function (Blueprint $table) {
-            $table->string('name')->nullable()->comment('授课老师');
-            $table->text('introduce')->nullable()->comment('老师简介');
-            $table->string('mobile')->nullable()->comment('联系方式');
+            $table->string('name')->nullable()->comment('授课老师')->change();
+            $table->text('introduce')->nullable()->comment('老师简介')->change();
+            $table->string('mobile')->nullable()->comment('联系方式')->change();
             // 备注
             $table->string('remark')->nullable()->comment('备注');
         });